ENS 52565
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ENS Event | |
|---|---|
23:30 Feb 17, 2017 | |
| Title | Agreement State Report - Missing Tritium Source and Depleted Uranium Disks |
| Event Description | The Wisconsin Department of Health was notified by phone at 5:30 PM on February 17, 2017 that the licensee has lost components of a radio-synthesis device containing approximately 70 Ci of Hydrogen-3 and 20 grams of Depleted Uranium in the form of uranium tritide (UT3) discs. More than three years ago, the licensee had packaged the material and placed it into a metal drum while a disposal option was to be determined. The drum was stored in a restricted area near the licensee's incineration facility. A week ago the licensee was preparing to repackage the material in order to transfer it for final disposal. The drum was found to be empty when opened. The licensee has search all facilities used for radioactive material storage and reviewed disposal records; but has been unable to account for the material. At this time the licensee suspects that the material was incorrectly disposed of in either a non-hazardous waste stream or incinerated within the last three years. The department has started an investigation to determine the most likely disposal pathway and the exposure impact. Site visits and updates will [be] perform[ed].
Event Report ID No.: WI170003
The licensee has performed a preliminary investigation and concluded that it is unlikely the loss of material was malicious. The licensee has already begun an impact assessment for the potential incineration of material, and Wisconsin DHS has coordinated with the licensee on what actions need to take place going forward. Inspectors will be performing an on-site inspection to further gather information. Notified R3DO (Jeffers) and NMSS Events Notification group via email. THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |
| Where | |
|---|---|
| University Of Wisconsin - Madison Madison, Wisconsin (NRC Region 3) | |
| License number: | 025-1323-01 |
| Organization: | Wisconsin Radiation Protection |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+13.57 h0.565 days <br />0.0808 weeks <br />0.0186 months <br />) | |
| Opened: | Mark Paulson 13:04 Feb 18, 2017 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Feb 23, 2017 |
| 52565 - NRC Website | |
University Of Wisconsin - Madison with Agreement State | |
WEEKMONTHYEARENS 525652017-02-17T23:30:00017 February 2017 23:30:00
[Table view]Agreement State Agreement State Report - Missing Tritium Source and Depleted Uranium Disks ENS 449172009-03-19T05:00:00019 March 2009 05:00:00 Agreement State Agreement State Report Involving Improperly Packaged Material ENS 444292008-08-19T05:00:00019 August 2008 05:00:00 Agreement State Agreement State Report - Fire in Research Laboratory ENS 443532008-07-14T05:00:00014 July 2008 05:00:00 Agreement State Agreement State Report - Medical Event Due to Dose Less than Prescribed Dose ENS 415762005-04-08T14:30:0008 April 2005 14:30:00 Agreement State Potential Medical Event Involving a Therapeutic Administration of Yttrium-90 2017-02-17T23:30:00 | |
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